51c3d3a054
apps/graphics/slcd: With these changes the CSLcd class now compiles
successfully. Still untested.
apps/graphics/slcd: Finish off rendering. Hook into configuration and build system.
apps/graphics/nxglyphs: Add images that will eventually be used for clock icons
apps/graphics/slcd: Completes all CLcd methods except for rendering to the window.
apps/graphics/slcd: Add beginning of SLCD class.
Add ASCII to SLCD character mapping.
apps/graphics/slcd: Represent segments as runs rather than trapezoids. Trapezoids will be synthesized later.
A little more SLCD logic
apps/graphics/slcd: Flesh out more trapezoids in the decomposition.
151 lines
5.2 KiB
C++
151 lines
5.2 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// apps/graphics/slcd/slcd.hxx
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//
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// Copyright (C) 2019 Gregory Nutt. All rights reserved.
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// Author: Gregory Nutt <gnutt@nuttx.org>
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in
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// the documentation and/or other materials provided with the
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// distribution.
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// 3. Neither the name NuttX nor the names of its contributors may be
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// used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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/////////////////////////////////////////////////////////////////////////////
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#ifndef __APPS_GRAPHICS_SLCD_SLCD_H
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#define __APPS_GRAPHICS_SLCD_SLCD_H 1
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/////////////////////////////////////////////////////////////////////////////
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// Included Files
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/////////////////////////////////////////////////////////////////////////////
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#include <cstdint>
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#include <fixedmath.h>
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#include "graphics/nxwidgets/nxconfig.hxx"
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#include "graphics/slcd.hxx"
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/////////////////////////////////////////////////////////////////////////////
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// Pre-processor definitions
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/////////////////////////////////////////////////////////////////////////////
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// Default colors: Light grey-green background, greenish-black foreground.
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// Similar to what you would see on a classic LCD.
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#define SLCD_BACKGROUND MKRGB(128, 140, 128)
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#define SLCD_FOREGROUND MKRGB(0, 16, 0)
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// Segment encoding:
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//
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// 11111111
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// 2 3
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// 2 3
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// 2 3
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// 44444444
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// 5 6
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// 5 6
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// 5 6
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// 77777777
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#define SEGMENT_1 (1 << 0)
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#define SEGMENT_2 (1 << 1)
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#define SEGMENT_3 (1 << 2)
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#define SEGMENT_4 (1 << 3)
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#define SEGMENT_5 (1 << 4)
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#define SEGMENT_6 (1 << 5)
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#define SEGMENT_7 (1 << 6)
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// Number of segments
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#define NSEGMENTS 7
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// Segment image aspect ratio width:height
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#define SLCD_ASPECT 0.577381L // Width / Height
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#define SLCD_ASPECT_B16 37577 // Width / Height
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// Number of miscellaneous character mappings
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#define NMISC_MAPPINGS 5
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namespace SLcd
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{
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/////////////////////////////////////////////////////////////////////////////
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// Public Types
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/////////////////////////////////////////////////////////////////////////////
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// Each trapezoid is represented by a sequence of runs. The first run
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// provides the top of the first trapezoid; the following provide the
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// bottom of each successive trapezoid. The top of each subsequent
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// trapezoid is the bottom of the trapezoid above it
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struct SLcdTrapezoidRun
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{
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b16_t leftx; // Left X position of run
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b16_t rightx; // Right X position of run
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b16_t y; // Y position of run
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};
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// Used to implement a sparse array that matches a few miscellaneous
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// ASCII characters to an LCD segment set.
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struct SSLcdCharset
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{
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char ch; // ASCII character to be mapped
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uint8_t segments; // Segment set that represents that character
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};
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/////////////////////////////////////////////////////////////////////////////
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// Public Data
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/////////////////////////////////////////////////////////////////////////////
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// An arrays of runs. The number of runs in each array is equal to the
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// number of trapezoids + 1
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extern const struct SLcdTrapezoidRun
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GTop_Runs[NTOP_TRAPEZOIDS + 1];
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extern const struct SLcdTrapezoidRun
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GTopLeft_Runs[NTOPLEFT_TRAPEZOIDS + 1];
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extern const struct SLcdTrapezoidRun
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GTopRight_Runs[NTOPRIGHT_TRAPEZOIDS + 1];
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extern const struct SLcdTrapezoidRun
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GMiddle_Runs[NMIDDLE_TRAPEZOIDS + 1];
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extern const struct SLcdTrapezoidRun
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GBottomLeft_Runs[NBOTTOMLEFT_TRAPEZOIDS + 1];
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extern const struct SLcdTrapezoidRun
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GBottomRight_Runs[NBOTTOMRIGHT_TRAPEZOIDS + 1];
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extern const struct SLcdTrapezoidRun
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GBottom_Runs[NBOTTOM_TRAPEZOIDS + 1];
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// ASCII to segment set mapping arrays
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extern const uint8_t GSLcdDigits[10];
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extern const uint8_t GSLcdLowerCase[26];
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extern const uint8_t GSLcdUpperCase[26];
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extern const struct SSLcdCharset SSLcdMisc[NMISC_MAPPINGS];
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}
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#endif /* __APPS_GRAPHICS_SLCD_SLCD_H */
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